Electrically-heated radiator.



F. L. 0mm.

ELECTRICALLY HE ATED RADIATOR.

APPLICATION FILED JUNE 18. 1918- Patented Dec. 17, 1918.

VAVK

uvemioz ing element 22 housed in FRANK L. DIETZEL, or WEST NAsnvr LE, TENNESSEE.

. ELECTRICALLY-HEATED RADIATOR.

Specification of Letters Patent.

Patented Dec. 1 7, 1918.

Application filed June 18, 1918. Serial No, 240593.

T 0 all whom i may 0071 ccrn:

Be 1t known that I, FRANK L. DIETZEL, a

citizen of the United States, residing at lVest Nashville, in the county of Davidson and State of Tennessee, have invented new and useful Improvements in Electricallyfieated Radiators, of which the following is a specification.

This invention relates to electricallyheated radiators, and the object is to produce in connection with a radiator of approximately the usualcommercial type, an attachment whereby the water may be heated to the boiling point directly in the radiator producing steam under suflicient pressure to effect the desired radiation. A further object is to provide a heating element adapted to be inserted in the inlet connection of a radiator with means automatically controlled for cutting off the current when. the pressure reaches a pre-determined degree, and for automatically restoring the electrical connection when the pressure has been. reduced to a predetermined degree. v

In the accompanying drawings:

Figure 1 is a view of a radiator in side elevation with a portion broken away to show the position of the heating element.

Fig. 2 is a fragmentary view in horizontal section. 1

Fig. 3 is a vertical section through a casing at the end of the radiator in which the controlling apparatus is located.

Fig, 1 is a detail view of the contact elements.

The radiator is designated 10 and is provided with the usual attachments such as an air valve 11, a water inlet 12 and an inlet 13 near the base 'and leading directly into one end section of the radiator.

The heating device includes a head 15 mounted within a casing 16 and carrying terminals 1'4 and 18 connected with the heatporcelain, as shown at 23.

A steam or water ialve 25 includes a casing and a stem 26 connected with a pivotally inounted arm 27 which in turn is pivoted to arm 28 guided in any suitable manner as by means of the bracket-or guiding device 29. A pivoted arm 30 carries a contact making element 31 cooperating with the individual contacts 32 and 33 mounted on a plate member in. These contacts or terminals 32 and 33 are connected respectively with wires 36 and 37. The circuit is through the feed wire 20, wire 37. connected therewith, terminal or contact 33, contact element 31, element 32, wire 36, terminal 17, the coil of the heating element, terminal 18, and wire 19, back to the power circuit. A spring 10 may be adjusted so that the device will operate under a given steam pressure, for the purpose of breaking the circuit at 32 and when the pressure rises to a given extent, and for completing the circuit after the pressure has fallen below a pro-determined degree.

.Contact element 31. which may be in the form of a roller, is insulated from the pivot 41 on which it is mounted. This pivot is carried by one end of arm 30 and is pro vided with an aperture through which rod 42 loosely passes. Spring 43 encircles rod -12, this rod being pivoted at 4% to arm 23, The spring bears against the pivot 41 and is'plac ed under compression when arm 28 is moved vertically in shifting the position of rod 42 and of arm 30 in throwing the Contact element 31 into or out of engagement with contacts 32 and 33. The connection described, including the rod 42, slidable in the mounting of the contact member 31, and the spring act-ion, effects the prompt breaking of the circuit' when the elements are moved into position for producing that result.

The heating element may comprise a coil of wire of suitable size, depending upon the size of the radiator, the porcelain jacket being inclosed in a tube 24 which is threaded into the inlet opening 18.

lVhat is claimed is:

1. In a device of the class described, a radiator, a resistance element mounted therein, a valve connected with the radiator and operated under a predetermined pressure, a plurality'of spaced-contacts, feed wires connected therewith, an additional contact element, means for mounting said. element, and means for throwing said element into position between the spaced contacts upon the movement of the valve under pro-determined pressure, said means last named including a pivoted arm and a pin thereon upon which the additional contact element is mounted, a'rod passing loosely through the pin, a spring controlling-the movement of the rod through the pin, and means connectingthe rod and the valve.

2. In a device of the class described, a

radiator, a resistance element mounted therein, a plurality of feed wires, a plurality of spaced eontacts connected with the fieed wires and with the resistanee element, a pivotally mounted member, an additional eontaet operated by said member, a pivotally mounted lever, means for ronneotiing the latter-with the pivotwl mem'her first named,

a spring eonneeted with the lever, means for f adjusting the tension of the spring, a plun gerxconneeted with one arm of the lever, a

feasing for said plunger. and means for eonneeting the casing with one of the radiator sections. the plunger operating under a predetermlned pressure within the radiator.

In testimony whereof I aliix my signature.

FRANK L. DIETZIGL. 

